diff options
Diffstat (limited to 'src/uscxml/transform/ChartToC.cpp')
| -rw-r--r-- | src/uscxml/transform/ChartToC.cpp | 1413 |
1 files changed, 1413 insertions, 0 deletions
diff --git a/src/uscxml/transform/ChartToC.cpp b/src/uscxml/transform/ChartToC.cpp new file mode 100644 index 0000000..574478d --- /dev/null +++ b/src/uscxml/transform/ChartToC.cpp @@ -0,0 +1,1413 @@ +/** + * @file + * @author 2012-2015 Stefan Radomski (stefan.radomski@cs.tu-darmstadt.de) + * @copyright Simplified BSD + * + * @cond + * This program is free software: you can redistribute it and/or modify + * it under the terms of the FreeBSD license as published by the FreeBSD + * project. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * You should have received a copy of the FreeBSD license along with this + * program. If not, see <http://www.opensource.org/licenses/bsd-license>. + * @endcond + */ + +#include "uscxml/transform/ChartToFSM.h" +#include "uscxml/transform/ChartToC.h" +#include "uscxml/debug/Complexity.h" +#include <DOM/io/Stream.hpp> +#include <iostream> +#include "uscxml/UUID.h" +#include "uscxml/DOMUtils.h" +#include <math.h> +#include <boost/algorithm/string.hpp> +#include <glog/logging.h> + +#include <algorithm> +#include <iomanip> + +namespace uscxml { + +using namespace Arabica::DOM; +using namespace Arabica::XPath; + +Transformer ChartToC::transform(const Interpreter& other) { + ChartToC* c2c = new ChartToC(other); + + return boost::shared_ptr<TransformerImpl>(c2c); +} + +ChartToC::ChartToC(const Interpreter& other) : TransformerImpl() { + cloneFrom(other.getImpl()); +} + +void ChartToC::writeTo(std::ostream& stream) { + _binding = (HAS_ATTR(_scxml, "binding") && iequals(ATTR(_scxml, "binding"), "late") ? LATE : EARLY); + + std::set<std::string> elements; + elements.insert(_nsInfo.xmlNSPrefix + "scxml"); + elements.insert(_nsInfo.xmlNSPrefix + "state"); + elements.insert(_nsInfo.xmlNSPrefix + "final"); + elements.insert(_nsInfo.xmlNSPrefix + "parallel"); + elements.insert(_nsInfo.xmlNSPrefix + "history"); + elements.insert(_nsInfo.xmlNSPrefix + "initial"); + elements.insert(_nsInfo.xmlNSPrefix + "parallel"); + _states = inDocumentOrder(elements, _scxml); + + for (int i = 0; i < _states.size(); i++) { + Element<std::string> state(_states[i]); + state.setAttribute("documentOrder", toStr(i)); + if (HAS_ATTR(state, "id")) { + _stateNames[ATTR(state, "id")] = state; + } + } + + elements.clear(); + elements.insert(_nsInfo.xmlNSPrefix + "transition"); + _transitions = inPostFixOrder(elements, _scxml); + + for (int i = 0; i < _transitions.size(); i++) { + Element<std::string> transition(_transitions[i]); + transition.setAttribute("postFixOrder", toStr(i)); + } + + // how many bits do we need to represent the state array? + std::string seperator; + _stateCharArraySize = ceil((float)_states.size() / (float)8); + _stateCharArrayInit = "{"; + for (int i = 0; i < _stateCharArraySize; i++) { + _stateCharArrayInit += seperator + "0"; + seperator = ", "; + } + _stateCharArrayInit += "}"; + + seperator = ""; + _transCharArraySize = ceil((float)_transitions.size() / (float)8); + _transCharArrayInit = "{"; + for (int i = 0; i < _transCharArraySize; i++) { + _transCharArrayInit += seperator + "0"; + seperator = ", "; + } + _transCharArrayInit += "}"; + + writeIncludes(stream); + writeMacros(stream); + writeTypes(stream); + writeElementInfo(stream); + writeExecContent(stream); + writeStates(stream); + writeTransitions(stream); + writeHelpers(stream); + writeFSM(stream); + + // http://stackoverflow.com/questions/2525310/how-to-define-and-work-with-an-array-of-bits-in-c + +} + +void ChartToC::writeIncludes(std::ostream& stream) { + stream << "#include <stdint.h> // explicit types" << std::endl; + stream << "#include <stddef.h> // NULL" << std::endl; + stream << std::endl; +} + +void ChartToC::writeMacros(std::ostream& stream) { + stream << "#define IS_SET(idx, bitset) ((bitset[idx >> 3] & (1 << (idx & 7))) != 0)" << std::endl; + stream << "#define SET_BIT(idx, bitset) bitset[idx >> 3] |= (1 << (idx & 7));" << std::endl; + stream << "#define CLEARBIT(idx, bitset) bitset[idx >> 3] &= (1 << (idx & 7)) ^ 0xFF;" << std::endl; + stream << std::endl; + + stream << "// error return codes" << std::endl; + stream << "#define SCXML_ERR_OK 0" << std::endl; + stream << "#define SCXML_ERR_IDLE 1" << std::endl; + stream << "#define SCXML_ERR_DONE 2" << std::endl; + stream << "#define SCXML_ERR_MISSING_CALLBACK 3" << std::endl; + stream << "#define SCXML_ERR_FOREACH_DONE 4" << std::endl; + stream << "#define SCXML_ERR_EXEC_CONTENT 5" << std::endl; + stream << "#define SCXML_ERR_INVALID_TARGET 6" << std::endl; + stream << "#define SCXML_ERR_INVALID_TYPE 7" << std::endl; + stream << std::endl; + + stream << "#define SCXML_NUMBER_STATES " << _states.size() << std::endl; + stream << "#define SCXML_NUMBER_TRANSITIONS " << _transitions.size() << std::endl; + stream << std::endl; + + stream << "#define SCXML_TRANS_SPONTANEOUS 0x01" << std::endl; + stream << "#define SCXML_TRANS_TARGETLESS 0x02" << std::endl; + stream << "#define SCXML_TRANS_INTERNAL 0x04" << std::endl; + stream << std::endl; + + stream << "#define SCXML_STATE_ATOMIC 0x01" << std::endl; + stream << "#define SCXML_STATE_PARALLEL 0x02" << std::endl; + stream << "#define SCXML_STATE_COMPOUND 0x03" << std::endl; + stream << "#define SCXML_STATE_FINAL 0x04" << std::endl; + stream << "#define SCXML_STATE_HISTORY_DEEP 0x05" << std::endl; + stream << "#define SCXML_STATE_HISTORY_SHALLOW 0x06" << std::endl; + stream << "#define SCXML_STATE_INITIAL 0x07" << std::endl; + + stream << "" << std::endl; + stream << "#define SCXML_CTX_PRISTINE 0x00" << std::endl; + stream << "#define SCXML_CTX_SPONTANEOUS 0x01" << std::endl; + stream << "#define SCXML_CTX_INITIALIZED 0x02" << std::endl; + stream << "#define SCXML_CTX_TOP_LEVEL_FINAL 0x04" << std::endl; + stream << "#define SCXML_CTX_TRANSITION_FOUND 0x08" << std::endl; + stream << std::endl; + + stream << "#define ELEM_DATA_IS_SET(data) (data->id != NULL)" << std::endl; + stream << "#define ELEM_PARAM_IS_SET(param) (param->name != NULL)" << std::endl; + stream << std::endl; +} + +void ChartToC::writeTypes(std::ostream& stream) { + + stream << std::endl; + stream << "typedef struct scxml_transition scxml_transition;" << std::endl; + stream << "typedef struct scxml_state scxml_state;" << std::endl; + stream << "typedef struct scxml_ctx scxml_ctx;" << std::endl; + stream << "typedef struct scxml_invoke scxml_invoke;" << std::endl; + + stream << std::endl; + + stream << "typedef struct scxml_elem_send scxml_elem_send;" << std::endl; + stream << "typedef struct scxml_elem_param scxml_elem_param;" << std::endl; + stream << "typedef struct scxml_elem_data scxml_elem_data;" << std::endl; + stream << "typedef struct scxml_elem_foreach scxml_elem_foreach;" << std::endl; + stream << std::endl; + + stream << "typedef void* (*dequeue_internal_cb_t)(const scxml_ctx* ctx);" << std::endl; + stream << "typedef void* (*dequeue_external_cb_t)(const scxml_ctx* ctx);" << std::endl; + stream << "typedef int (*is_enabled_cb_t)(const scxml_ctx* ctx, const scxml_transition* transition, const void* event);" << std::endl; + stream << "typedef int (*is_true_cb_t)(const scxml_ctx* ctx, const char* expr);" << std::endl; + stream << "typedef int (*exec_content_t)(const scxml_ctx* ctx, const scxml_state* state, const void* event);" << std::endl; + stream << "typedef int (*raise_done_event_t)(const scxml_ctx* ctx, const scxml_state* state);" << std::endl; + stream << "typedef int (*invoke_t)(const scxml_ctx* ctx, const scxml_state* s, const scxml_invoke* x);" << std::endl; + stream << std::endl; + + stream << "typedef int (*exec_content_log_t)(const scxml_ctx* ctx, const char* label, const char* expr);" << std::endl; + stream << "typedef int (*exec_content_raise_t)(const scxml_ctx* ctx, const char* event);" << std::endl; + stream << "typedef int (*exec_content_send_t)(const scxml_ctx* ctx, const scxml_elem_send* send);" << std::endl; + stream << "typedef int (*exec_content_foreach_init_t)(const scxml_ctx* ctx, const scxml_elem_foreach* foreach);" << std::endl; + stream << "typedef int (*exec_content_foreach_next_t)(const scxml_ctx* ctx, const scxml_elem_foreach* foreach);" << std::endl; + stream << "typedef int (*exec_content_foreach_done_t)(const scxml_ctx* ctx, const scxml_elem_foreach* foreach);" << std::endl; + stream << "typedef int (*exec_content_assign_t)(const scxml_ctx* ctx, const char* location, const char* expr);" << std::endl; + stream << "typedef int (*exec_content_init_t)(const scxml_ctx* ctx, const scxml_elem_data* data);" << std::endl; + stream << "typedef int (*exec_content_cancel_t)(const scxml_ctx* ctx, const char* sendid, const char* sendidexpr);" << std::endl; + stream << "typedef int (*exec_content_finalize_t)(const scxml_ctx* ctx, const scxml_invoke* invoker, const void* event);" << std::endl; + stream << "typedef int (*exec_content_script_t)(const scxml_ctx* ctx, const char* src, const char* content);" << std::endl; + stream << std::endl; + + stream << "struct scxml_elem_data {" << std::endl; + stream << " const char* id;" << std::endl; + stream << " const char* src;" << std::endl; + stream << " const char* expr;" << std::endl; + stream << " const char* content;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_state {" << std::endl; + stream << " const char* name; // eventual name" << std::endl; + stream << " exec_content_t on_entry; // on entry handlers" << std::endl; + stream << " exec_content_t on_exit; // on exit handlers" << std::endl; + stream << " invoke_t invoke; // invocations" << std::endl; + stream << " char children[" << _stateCharArraySize << "]; // all children" << std::endl; + stream << " char completion[" << _stateCharArraySize << "]; // default completion" << std::endl; + stream << " char ancestors[" << _stateCharArraySize << "]; // all ancestors" << std::endl; + stream << " const scxml_elem_data* data;" << std::endl; + stream << " uint8_t type; // atomic, parallel, compound, final, history" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_transition {" << std::endl; + stream << " uint16_t source;" << std::endl; + stream << " char target[" << _stateCharArraySize << "];" << std::endl; + stream << " const char* event;" << std::endl; + stream << " const char* condition;" << std::endl; + stream << " exec_content_t on_transition;" << std::endl; + stream << " uint8_t type;" << std::endl; + stream << " char conflicts[" << _transCharArraySize << "];" << std::endl; + stream << " char exit_set[" << _stateCharArraySize << "];" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_elem_foreach {" << std::endl; + stream << " const char* array;" << std::endl; + stream << " const char* item;" << std::endl; + stream << " const char* index;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_elem_param {" << std::endl; + stream << " const char* name;" << std::endl; + stream << " const char* expr;" << std::endl; + stream << " const char* location;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_elem_invoke {" << std::endl; + stream << " const char* type;" << std::endl; + stream << " const char* typeexpr;" << std::endl; + stream << " const char* src;" << std::endl; + stream << " const char* srcexpr;" << std::endl; + stream << " const char* id;" << std::endl; + stream << " const char* idlocation;" << std::endl; + stream << " const char* namelist;" << std::endl; + stream << " uint8_t autoforward;" << std::endl; + stream << " const scxml_elem_param* params;" << std::endl; + stream << " const exec_content_finalize_t* finalize;" << std::endl; + stream << " const char* content;" << std::endl; + stream << " void* user_data;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_elem_send {" << std::endl; + stream << " const char* event;" << std::endl; + stream << " const char* eventexpr;" << std::endl; + stream << " const char* target;" << std::endl; + stream << " const char* targetexpr;" << std::endl; + stream << " const char* type;" << std::endl; + stream << " const char* typeexpr;" << std::endl; + stream << " const char* id;" << std::endl; + stream << " const char* idlocation;" << std::endl; + stream << " const char* delay;" << std::endl; + stream << " const char* delayexpr;" << std::endl; + stream << " const char* namelist;" << std::endl; + stream << " const char* content;" << std::endl; + stream << " const scxml_elem_param* params;" << std::endl; + stream << " void* user_data;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + + stream << "struct scxml_ctx {" << std::endl; + stream << " uint8_t flags;" << std::endl; + stream << std::endl; + stream << " char config[" << _stateCharArraySize << "];" << std::endl; + stream << " char history[" << _stateCharArraySize << "];" << std::endl; + stream << " char pending_invokes[" << _stateCharArraySize << "];" << std::endl; + stream << " char initialized_data[" << _stateCharArraySize << "];" << std::endl; + stream << std::endl; + stream << " void* user_data;" << std::endl; + stream << std::endl; + stream << " dequeue_internal_cb_t dequeue_internal;" << std::endl; + stream << " dequeue_external_cb_t dequeue_external;" << std::endl; + stream << " is_enabled_cb_t is_enabled;" << std::endl; + stream << " is_true_cb_t is_true;" << std::endl; + stream << " raise_done_event_t raise_done_event;" << std::endl; + stream << std::endl; + stream << " exec_content_log_t exec_content_log;" << std::endl; + stream << " exec_content_raise_t exec_content_raise;" << std::endl; + stream << " exec_content_send_t exec_content_send;" << std::endl; + stream << " exec_content_foreach_init_t exec_content_foreach_init;" << std::endl; + stream << " exec_content_foreach_next_t exec_content_foreach_next;" << std::endl; + stream << " exec_content_foreach_done_t exec_content_foreach_done;" << std::endl; + stream << " exec_content_assign_t exec_content_assign;" << std::endl; + stream << " exec_content_init_t exec_content_init;" << std::endl; + stream << " exec_content_cancel_t exec_content_cancel;" << std::endl; + stream << " exec_content_script_t exec_content_script;" << std::endl; + stream << " invoke_t invoke;" << std::endl; + stream << "};" << std::endl; + stream << std::endl; +} + +void ChartToC::writeHelpers(std::ostream& stream) { + stream << "#ifdef SCXML_VERBOSE" << std::endl; + stream << "void printStateNames(const char* a) {" << std::endl; + stream << " const char* seperator = \"\";" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_STATES; i++) {" << std::endl; + stream << " if (IS_SET(i, a)) {" << std::endl; + stream << " printf(\"%s%s\", seperator, (scxml_states[i].name != NULL ? scxml_states[i].name : \"UNK\"));" << std::endl; + stream << " seperator = \", \";" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " printf(\"\\n\");" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + + stream << "void printBitsetIndices(const char* a, size_t length) {" << std::endl; + stream << " const char* seperator = \"\";" << std::endl; + stream << " for (int i = 0; i < length; i++) {" << std::endl; + stream << " if (IS_SET(i, a)) {" << std::endl; + stream << " printf(\"%s%d\", seperator, i);" << std::endl; + stream << " seperator = \", \";" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " printf(\"\\n\");" << std::endl; + stream << "}" << std::endl; + + stream << "#endif" << std::endl; + stream << std::endl; + + stream << "void bit_or(char* dest, const char* mask, size_t length) {" << std::endl; + stream << " for (int i = 0; i < length; ++i) {" << std::endl; + stream << " dest[i] |= mask[i];" << std::endl; + stream << " }" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + + stream << "void bit_copy(char* dest, const char* source, size_t length) {" << std::endl; + stream << " for (int i = 0; i < length; ++i) {" << std::endl; + stream << " dest[i] = source[i];" << std::endl; + stream << " }" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + + stream << "int bit_has_and(const char* a, const char* b, size_t length) {" << std::endl; + stream << " for (int i = 0; i < length; ++i) {" << std::endl; + stream << " if (a[i] & b[i])" << std::endl; + stream << " return true;" << std::endl; + stream << " }" << std::endl; + stream << " return false;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + + stream << "void bit_and_not(char* dest, const char* mask, size_t length) {" << std::endl; + stream << " for (int i = 0; i < length; ++i) {" << std::endl; + stream << " dest[i] &= ~mask[i];" << std::endl; + stream << " }" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + + stream << "int bit_any_set(const char* a, size_t length) {" << std::endl; + stream << " for (int i = 0; i < length; ++i) {" << std::endl; + stream << " if (a[i] > 0)" << std::endl; + stream << " return true;" << std::endl; + stream << " }" << std::endl; + stream << " return false;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + +} + +void ChartToC::writeExecContent(std::ostream& stream) { + for (int i = 0; i < _states.size(); i++) { + Element<std::string> state(_states[i]); + + NodeSet<std::string> onexit = filterChildElements(_nsInfo.xmlNSPrefix + "onexit", state); + for (int j = 0; j < onexit.size(); j++) { + stream << "int " << DOMUtils::idForNode(state) << "_on_exit_" << toStr(j) << "(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + stream << " int err = SCXML_ERR_OK;" << std::endl; + writeExecContent(stream, onexit[j], 1); + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + + if (onexit.size() > 0) { + stream << "int " << DOMUtils::idForNode(state) << "_on_exit(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + for (int j = 0; j < onexit.size(); j++) { + stream << " " << DOMUtils::idForNode(state) << "_on_exit_" << toStr(j) << "(ctx, state, event);" << std::endl; + } + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + + + NodeSet<std::string> onentry = filterChildElements(_nsInfo.xmlNSPrefix + "onentry", state); + for (int j = 0; j < onentry.size(); j++) { + stream << "int " << DOMUtils::idForNode(state) << "_on_entry_" << toStr(j) << "(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + stream << " int err = SCXML_ERR_OK;" << std::endl; + writeExecContent(stream, onentry[j], 1); + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + + bool hasInitialState = false; + NodeSet<std::string> initial = filterChildElements(_nsInfo.xmlNSPrefix + "initial", state); + if (initial.size() > 0) { + NodeSet<std::string> initialTransition = filterChildElements(_nsInfo.xmlNSPrefix + "transition", initial); + if (initialTransition.size() > 0) { + hasInitialState = true; + stream << "int " << DOMUtils::idForNode(state) << "_initial" << "(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + stream << " int err = SCXML_ERR_OK;" << std::endl; + writeExecContent(stream, initialTransition[0], 1); + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + } + + + if (onentry.size() > 0) { + stream << "int " << DOMUtils::idForNode(state) << "_on_entry(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + for (int j = 0; j < onentry.size(); j++) { + stream << " " << DOMUtils::idForNode(state) << "_on_entry_" << toStr(j) << "(ctx, state, event);" << std::endl; + } + if (hasInitialState) { + stream << " " << DOMUtils::idForNode(state) << "_initial" << "(ctx, state, event);" << std::endl; + } + + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + + + NodeSet<std::string> invoke = filterChildElements(_nsInfo.xmlNSPrefix + "invoke", state); + if (invoke.size() > 0) { + stream << "int " << DOMUtils::idForNode(state) << "_invoke(const scxml_ctx* ctx, const scxml_state* s, const scxml_invoke* x) {" << std::endl; + for (int j = 0; j < invoke.size(); j++) { + stream << " ctx->invoke(ctx, s, x);" << std::endl; + stream << " return SCXML_ERR_OK;" << std::endl; + stream << std::endl; + } + stream << "}" << std::endl; + } + } + + for (int i = 0; i < _transitions.size(); i++) { + Element<std::string> transition(_transitions[i]); + if (iequals(TAGNAME_CAST(transition.getParentNode()), "initial")) + continue; + + NodeSet<std::string> execContent = filterChildType(Node_base::ELEMENT_NODE, transition); + + if (execContent.size() > 0) { + stream << "int " << DOMUtils::idForNode(transition) << "_on_trans(const scxml_ctx* ctx, const scxml_state* state, const void* event) {" << std::endl; + stream << " int err = SCXML_ERR_OK;" << std::endl; + writeExecContent(stream, Element<std::string>(execContent[0]), 1); + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; + } + } +} + +void ChartToC::writeExecContent(std::ostream& stream, const Arabica::DOM::Node<std::string>& node, int indent) { + if (!node) + return; + + if (node.getNodeType() == Node_base::TEXT_NODE) { + if (boost::trim_copy(node.getNodeValue()).length() > 0) { + std::string escaped = escape(node.getNodeValue()); + stream << escaped; + } + return; + } + + std::string padding; + for (int i = 0; i < indent; i++) { + padding += " "; + } + + + if (node.getNodeType() != Node_base::ELEMENT_NODE) + return; // skip anything not an element + + Arabica::DOM::Element<std::string> elem = Arabica::DOM::Element<std::string>(node); + + if (false) { + } else if(TAGNAME(elem) == "onentry" || TAGNAME(elem) == "onexit" || TAGNAME(elem) == "transition" || TAGNAME(elem) == "finalize") { + // descent into childs and write their contents + Arabica::DOM::Node<std::string> child = node.getFirstChild(); + while(child) { + writeExecContent(stream, child, indent); + child = child.getNextSibling(); + } + } else if(TAGNAME(elem) == "script") { + stream << padding; + stream << "if (ctx->exec_content_script != NULL) {" << std::endl; + stream << padding; + stream << " if ((err = ctx->exec_content_script(ctx, "; + stream << (HAS_ATTR(elem, "src") ? "\"" + escape(ATTR(elem, "src")) + "\"" : "NULL") << ", "; + + NodeSet<std::string> scriptTexts = filterChildType(Node_base::TEXT_NODE, elem); + if (scriptTexts.size() > 0) { + stream << "\""; + writeExecContent(stream, scriptTexts[0], 0); + stream << "\""; + } else { + stream << "NULL"; + } + + stream << ")) != SCXML_ERR_OK) return err" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "log") { + stream << padding; + stream << "if (ctx->exec_content_log != NULL) {" << std::endl; + stream << padding; + stream << " if ((ctx->exec_content_log(ctx, "; + stream << (HAS_ATTR(elem, "label") ? "\"" + escape(ATTR(elem, "label")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(elem, "expr") ? "\"" + escape(ATTR(elem, "expr")) + "\"" : "NULL"); + stream << ")) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "foreach") { + stream << padding << "if (ctx->exec_content_foreach_init != NULL &&" << std::endl; + stream << padding << " ctx->exec_content_foreach_next != NULL &&" << std::endl; + stream << padding << " ctx->exec_content_foreach_done != NULL) {" << std::endl; + stream << std::endl; + + stream << padding << " if ((ctx->exec_content_foreach_init(ctx, &scxml_elem_foreachs[" << ATTR(elem, "documentOrder") << "])) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << " while (ctx->exec_content_foreach_next(ctx, &scxml_elem_foreachs[" << ATTR(elem, "documentOrder") << "]) == SCXML_ERR_OK) {" << std::endl; + Arabica::DOM::Node<std::string> child = node.getFirstChild(); + while(child) { + writeExecContent(stream, child, indent + 2); + child = child.getNextSibling(); + } + stream << padding << " }" << std::endl; + stream << padding << " if ((ctx->exec_content_foreach_done(ctx, &scxml_elem_foreachs[" << ATTR(elem, "documentOrder") << "])) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "if") { + stream << padding; + stream << "if (ctx->is_true != NULL) {" << std::endl; + stream << padding; + stream << " if (ctx->is_true(ctx, " << (HAS_ATTR(elem, "cond") ? "\"" + escape(ATTR(elem, "cond")) + "\"" : "NULL") << ")) {" << std::endl; + Arabica::DOM::Node<std::string> child = elem.getFirstChild(); + while(child) { + if (child.getNodeType() == Node_base::ELEMENT_NODE && TAGNAME_CAST(child) == "elseif") { + stream << padding; + stream << " } else if (ctx->is_true(ctx, " << (HAS_ATTR_CAST(child, "cond") ? "\"" + escape(ATTR_CAST(child, "cond")) + "\"" : "NULL") << ")) {" << std::endl; + } else if (child.getNodeType() == Node_base::ELEMENT_NODE && TAGNAME_CAST(child) == "else") { + stream << padding; + stream << " } else {" << std::endl; + } else { + writeExecContent(stream, child, indent + 2); + } + child = child.getNextSibling(); + } + stream << padding << " }" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "assign") { + stream << padding; + stream << "if (ctx->exec_content_assign != NULL) {" << std::endl; + stream << padding; + stream << " if ((ctx->exec_content_assign(ctx, "; + stream << (HAS_ATTR(elem, "location") ? "\"" + escape(ATTR(elem, "location")) + "\"" : "NULL") << ", "; + if (HAS_ATTR(elem, "expr")) { + stream << "\"" + escape(ATTR(elem, "expr")) + "\""; + } else { + NodeSet<std::string> assignTexts = filterChildType(Node_base::TEXT_NODE, elem); + if (assignTexts.size() > 0) { + stream << "\""; + writeExecContent(stream, assignTexts[0], 0); + stream << "\""; + } else { + stream << "NULL"; + } + } + stream << ")) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + + } else if(TAGNAME(elem) == "raise") { + stream << padding; + stream << "if (ctx->exec_content_raise != NULL) {" << std::endl; + stream << padding; + stream << " if ((ctx->exec_content_raise(ctx, "; + stream << (HAS_ATTR(elem, "event") ? "\"" + escape(ATTR(elem, "event")) + "\"" : "NULL"); + stream << ")) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "send") { + stream << padding; + stream << "if (ctx->exec_content_send != NULL) {" << std::endl; + stream << padding; + stream << " if ((ctx->exec_content_send(ctx, &scxml_elem_sends[" << ATTR(elem, "documentOrder") << "]"; + stream << ")) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else if(TAGNAME(elem) == "cancel") { + stream << padding; + stream << "if (ctx->exec_content_cancel != NULL) {" << std::endl; + stream << padding; + stream << " if ((ctx->exec_content_cancel(ctx, "; + stream << (HAS_ATTR(elem, "sendid") ? "\"" + escape(ATTR(elem, "sendid")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(elem, "sendidexpr") ? "\"" + escape(ATTR(elem, "sendidexpr")) + "\"" : "NULL"); + stream << ")) != SCXML_ERR_OK) return err;" << std::endl; + stream << padding << "} else {" << std::endl; + stream << padding << " return SCXML_ERR_MISSING_CALLBACK;" << std::endl; + stream << padding << "}" << std::endl; + + } else { + std::cerr << "'" << TAGNAME(elem) << "'" << std::endl << elem << std::endl; + assert(false); + } + +} + +void ChartToC::writeElementInfo(std::ostream& stream) { + NodeSet<std::string> foreachs = filterChildElements(_nsInfo.xmlNSPrefix + "foreach", _scxml, true); + if (foreachs.size() > 0) { + stream << "scxml_elem_foreach scxml_elem_foreachs[" << foreachs.size() << "] = {" << std::endl; + for (int i = 0; i < foreachs.size(); i++) { + Element<std::string> foreach(foreachs[i]); + stream << " { "; + stream << (HAS_ATTR(foreach, "array") ? "\"" + escape(ATTR(foreach, "array")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(foreach, "item") ? "\"" + escape(ATTR(foreach, "item")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(foreach, "index") ? "\"" + escape(ATTR(foreach, "index")) + "\"" : "NULL"); + stream << " }" << (i + 1 < foreachs.size() ? ",": "") << std::endl; + foreach.setAttribute("documentOrder", toStr(i)); + } + stream << "};" << std::endl; + stream << std::endl; + } + + NodeSet<std::string> datas = filterChildElements(_nsInfo.xmlNSPrefix + "data", _scxml, true); + if (datas.size() > 0) { + if (_binding == InterpreterImpl::EARLY) { + Element<std::string>(_states[0]).setAttribute("dataIndex", "0"); + } + + Node<std::string> parent; + size_t distinctParents = 0; + for (int i = 0; i < datas.size(); i++) { + Element<std::string> data(datas[i]); + if (data.getParentNode() != parent) { + distinctParents++; + } + } + parent = Node<std::string>(); + + stream << "scxml_elem_data scxml_elem_datas[" << datas.size() + distinctParents << "] = {" << std::endl; + for (int i = 0; i < datas.size(); i++) { + Element<std::string> data(datas[i]); + if (data.getParentNode().getParentNode() != parent) { + if (_binding == InterpreterImpl::LATE) { + Element<std::string>(data.getParentNode().getParentNode()).setAttribute("dataIndex", toStr(i)); + if (i > 0) { + stream << " { NULL, NULL, NULL, NULL }," << std::endl; + } + } + parent = data.getParentNode().getParentNode(); + } + stream << " { "; + stream << (HAS_ATTR(data, "id") ? "\"" + escape(ATTR(data, "id")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(data, "src") ? "\"" + escape(ATTR(data, "src")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(data, "expr") ? "\"" + escape(ATTR(data, "expr")) + "\"" : "NULL") << ", "; + + NodeSet<std::string> dataTexts = filterChildType(Node_base::TEXT_NODE, data); + if (dataTexts.size() > 0) { + if (boost::trim_copy(dataTexts[0].getNodeValue()).length() > 0) { + std::string escaped = escape(dataTexts[0].getNodeValue()); + stream << "\"" << escaped << "\"" << std::endl; + } + } else { + stream << "NULL"; + } + + stream << " }," << std::endl; + + } + stream << " { NULL, NULL, NULL, NULL }" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + } + + NodeSet<std::string> params = filterChildElements(_nsInfo.xmlNSPrefix + "param", _scxml, true); + if (params.size() > 0) { + Node<std::string> parent; + size_t distinctParents = 0; + for (int i = 0; i < params.size(); i++) { + Element<std::string> param(params[i]); + if (param.getParentNode() != parent) { + distinctParents++; + } + } + parent = Node<std::string>(); + + stream << "scxml_elem_param scxml_elem_params[" << params.size() + distinctParents << "] = {" << std::endl; + for (int i = 0; i < params.size(); i++) { + Element<std::string> param(params[i]); + if (param.getParentNode() != parent) { + Element<std::string>(param.getParentNode()).setAttribute("paramIndex", toStr(i)); + if (i > 0) { + stream << " { NULL, NULL, NULL }," << std::endl; + } + parent = param.getParentNode(); + } + stream << " { "; + stream << (HAS_ATTR(param, "name") ? "\"" + escape(ATTR(param, "name")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(param, "expr") ? "\"" + escape(ATTR(param, "expr")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(param, "location") ? "\"" + escape(ATTR(param, "location")) + "\"" : "NULL"); + stream << " }," << std::endl; + + } + stream << " { NULL, NULL, NULL }" << std::endl; + stream << "};" << std::endl; + stream << std::endl; + } + + NodeSet<std::string> sends = filterChildElements(_nsInfo.xmlNSPrefix + "send", _scxml, true); + if (sends.size() > 0) { + stream << "scxml_elem_send scxml_elem_sends[" << sends.size() << "] = {" << std::endl; + for (int i = 0; i < sends.size(); i++) { + Element<std::string> send(sends[i]); + stream << " { "; + stream << (HAS_ATTR(send, "event") ? "\"" + escape(ATTR(send, "event")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "eventexpr") ? "\"" + escape(ATTR(send, "eventexpr")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "target") ? "\"" + escape(ATTR(send, "target")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "targetexpr") ? "\"" + escape(ATTR(send, "targetexpr")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "type") ? "\"" + escape(ATTR(send, "type")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "typeexpr") ? "\"" + escape(ATTR(send, "typeexpr")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "id") ? "\"" + escape(ATTR(send, "id")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "idlocation") ? "\"" + escape(ATTR(send, "idlocation")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "delay") ? "\"" + escape(ATTR(send, "delay")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "delayexpr") ? "\"" + escape(ATTR(send, "delayexpr")) + "\"" : "NULL") << ", "; + stream << (HAS_ATTR(send, "namelist") ? "\"" + escape(ATTR(send, "namelist")) + "\"" : "NULL") << ", "; + + NodeSet<std::string> contents = filterChildElements(_nsInfo.xmlNSPrefix + "content", send); + if (contents.size() > 0) { + std::stringstream ss; + stream << "\""; + NodeList<std::string> cChilds = contents[0].getChildNodes(); + for (int j = 0; j < cChilds.getLength(); j++) { + ss << cChilds.item(j); + stream << escape(ss.str()); + } + stream << "\", "; + } else { + stream << "NULL, "; + } + + + if (HAS_ATTR(send, "paramIndex")) { + stream << "(const scxml_elem_param*)&scxml_elem_params[" << escape(ATTR(send, "paramIndex")) << "], "; + } else { + stream << "NULL, "; + } + stream << "NULL"; + + stream << " }" << (i + 1 < sends.size() ? ",": "") << std::endl; + send.setAttribute("documentOrder", toStr(i)); + } + stream << "};" << std::endl; + stream << std::endl; + } + +} + +void ChartToC::writeStates(std::ostream& stream) { + stream << "scxml_state scxml_states[" << toStr(_states.size()) << "] = {" << std::endl; + for (int i = 0; i < _states.size(); i++) { + Element<std::string> state(_states[i]); + stream << " { "; + + // name + stream << (HAS_ATTR(state, "id") ? "\"" + escape(ATTR(state, "id")) + "\"" : "NULL") << ", "; + + // onentry + stream << (filterChildElements(_nsInfo.xmlNSPrefix + "onentry", state).size() > 0 ? DOMUtils::idForNode(state) + "_on_entry" : "NULL") << ", "; + + // onexit + stream << (filterChildElements(_nsInfo.xmlNSPrefix + "onexit", state).size() > 0 ? DOMUtils::idForNode(state) + "_on_exit" : "NULL") << ", "; + + // invokers + stream << (filterChildElements(_nsInfo.xmlNSPrefix + "invoke", state).size() > 0 ? DOMUtils::idForNode(state) + "_invoke" : "NULL") << ", "; + + // children + std::string childBools; + std::string childBoolsIdx; + for (int j = 0; j < _states.size(); j++) { + if (_states[j].getParentNode() == state) { + childBools += "1"; + childBoolsIdx += " " + toStr(j); + } else { + childBools += "0"; + } + } + stream << "{ "; + writeCharArrayInitList(stream, childBools); + stream << " /* " << childBools << "," << childBoolsIdx << " */"; + stream << " }, "; + + // default completion + NodeSet<std::string> completion; + if (isParallel(state)) { + completion = getChildStates(state); + } else if (state.hasAttribute("initial")) { + completion = getStates(tokenizeIdRefs(state.getAttribute("initial"))); + } else { + NodeSet<std::string> initElems = filterChildElements(_nsInfo.xmlNSPrefix + "initial", state); + if(initElems.size() > 0 && !iequals(ATTR_CAST(initElems[0], "generated"), "true")) { + // initial element is first child + completion.push_back(initElems[0]); + } else { + // first child state + Arabica::XPath::NodeSet<std::string> initStates; + NodeList<std::string> childs = state.getChildNodes(); + for (int i = 0; i < childs.getLength(); i++) { + if (childs.item(i).getNodeType() != Node_base::ELEMENT_NODE) + continue; + if (isState(Element<std::string>(childs.item(i)))) { + completion.push_back(childs.item(i)); + } + } + } + } + + std::string descBools; + std::string descBoolsIdx; + for (int j = 0; j < _states.size(); j++) { + if (isMember(_states[j], completion)) { + descBools += "1"; + descBoolsIdx += " " + toStr(j); + } else { + descBools += "0"; + } + } + stream << "{ "; + writeCharArrayInitList(stream, descBools); + stream << " /* " << descBools << "," << descBoolsIdx << " */"; + stream << " }, "; + + // ancestors + std::string ancBools; + std::string ancBoolsIdx; + for (int j = 0; j < _states.size(); j++) { + if (isDescendant(state, _states[j])) { + ancBools += "1"; + ancBoolsIdx += " " + toStr(j); + } else { + ancBools += "0"; + } + } + stream << "{ "; + writeCharArrayInitList(stream, ancBools); + stream << " /* " << ancBools << "," << ancBoolsIdx << " */"; + stream << " }, "; + + if (HAS_ATTR(state, "dataIndex")) { + stream << "(const scxml_elem_data*)&scxml_elem_datas[" << escape(ATTR(state, "dataIndex")) << "], "; + } else { + stream << "NULL, "; + } + + if (false) { + } else if (iequals(TAGNAME(state), "initial")) { + stream << "SCXML_STATE_INITIAL"; + } else if (isFinal(state)) { + stream << "SCXML_STATE_FINAL"; + } else if (isHistory(state)) { + if (HAS_ATTR(state, "type") && iequals(ATTR(state, "type"), "deep")) { + stream << "SCXML_STATE_HISTORY_DEEP"; + } else { + stream << "SCXML_STATE_HISTORY_SHALLOW"; + } + } else if (isAtomic(state)) { + stream << "SCXML_STATE_ATOMIC"; + } else if (isParallel(state)) { + stream << "SCXML_STATE_PARALLEL"; + } else if (isCompound(state)) { + stream << "SCXML_STATE_COMPOUND"; + } else { // <scxml> + stream << "SCXML_STATE_COMPOUND"; + } + + stream << " }" << (i + 1 < _states.size() ? ",": "") << std::endl; + } + stream << "};" << std::endl; + stream << std::endl; +} + + +void ChartToC::writeTransitions(std::ostream& stream) { + + stream << "scxml_transition scxml_transitions[" << toStr(_transitions.size()) << "] = {" << std::endl; + for (int i = 0; i < _transitions.size(); i++) { + Element<std::string> transition(_transitions[i]); + stream << " { "; + + /** + uint16_t source; + target[SCXML_NUMBER_STATES / 8 + 1]; + const char* event; + const char* condition; + exec_content_t on_transition; + uint8_t type; + char conflicts[SCXML_NUMBER_STATES / 8 + 1]; + char exit_set[SCXML_NUMBER_STATES / 8 + 1]; + */ + + // source + stream << ATTR_CAST(transition.getParentNode(), "documentOrder") << ", "; + + // targets + if (HAS_ATTR(transition, "target")) { + std::list<std::string> targets = tokenize(ATTR(transition, "target")); + + std::string targetBools; + for (int j = 0; j < _states.size(); j++) { + Element<std::string> state(_states[j]); + + if (HAS_ATTR(state, "id") && + std::find(targets.begin(), targets.end(), escape(ATTR(state, "id"))) != targets.end()) { + targetBools += "1"; + } else { + targetBools += "0"; + } + } + + stream << "{ "; + writeCharArrayInitList(stream, targetBools); + stream << " /* " << targetBools << " */"; + stream << " }, "; + + } else { + stream << "{ NULL }, "; + } + + // event + stream << (HAS_ATTR(transition, "event") ? "\"" + escape(ATTR(transition, "event")) + "\"" : "NULL") << ", "; + + // condition + stream << (HAS_ATTR(transition, "cond") ? "\"" + escape(ATTR(transition, "cond")) + "\"" : "NULL") << ", "; + + // on transition handlers + if (filterChildType(Arabica::DOM::Node_base::ELEMENT_NODE, transition).size() > 0 && + !iequals(TAGNAME_CAST(transition.getParentNode()), "initial")) { + stream << DOMUtils::idForNode(transition) + "_on_trans, "; + } else { + stream << "NULL, "; + } + + // type + std::string seperator = ""; + if (!HAS_ATTR(transition, "target")) { + stream << seperator << "SCXML_TRANS_TARGETLESS"; + seperator = " & "; + } + + if (HAS_ATTR(transition, "type") && iequals(ATTR(transition, "type"), "internal")) { + stream << seperator << "SCXML_TRANS_INTERNAL"; + seperator = " & "; + } + + if (!HAS_ATTR(transition, "event")) { + stream << seperator << "SCXML_TRANS_SPONTANEOUS"; + seperator = " & "; + } + + if (seperator.size() == 0) { + stream << "0"; + } + stream << ", "; + + // conflicts + std::string conflictBools; + for (unsigned int j = 0; j < _transitions.size(); j++) { + Element<std::string> t2(_transitions[j]); + if (hasIntersection(computeExitSet(transition), computeExitSet(t2)) || + (getSourceState(transition) == getSourceState(t2)) || + (isDescendant(getSourceState(transition), getSourceState(t2))) || + (isDescendant(getSourceState(t2), getSourceState(transition)))) { + conflictBools += "1"; + } else { + conflictBools += "0"; + } + } + stream << "{ "; + writeCharArrayInitList(stream, conflictBools); + stream << " /* " << conflictBools << " */"; + stream << " }, "; + + // exit set + std::string exitSetBools; + NodeSet<std::string> exitSet = computeExitSet(transition); + for (unsigned int j = 0; j < _states.size(); j++) { + Element<std::string> state(_states[j]); + if (isMember(state, exitSet)) { + exitSetBools += "1"; + } else { + exitSetBools += "0"; + } + } + stream << "{ "; + writeCharArrayInitList(stream, exitSetBools); + stream << " /* " << exitSetBools << " */"; + stream << " }"; + + stream << " }" << (i + 1 < _transitions.size() ? ",": "") << std::endl; + } + stream << "};" << std::endl; + stream << std::endl; +} + +Arabica::XPath::NodeSet<std::string> ChartToC::computeExitSet(const Arabica::DOM::Element<std::string>& transition) { + + NodeSet<std::string> statesToExit; + if (!isTargetless(transition)) { + Arabica::DOM::Node<std::string> domain = getTransitionDomain(transition); + if (!domain) + return statesToExit; + for (unsigned int j = 0; j < _states.size(); j++) { + const Node<std::string>& s = _states[j]; + if (isDescendant(s, domain)) { + statesToExit.push_back(s); + } + } + } + + return statesToExit; +} + +void ChartToC::writeCharArrayInitList(std::ostream& stream, const std::string& boolString) { + /** + * 0111 -> 0x08 + * 1111 -> 0x0f + * 1111 1111 -> 0xff + * 1111 1111 1110 -> 0x0f, 0xfd + * + * 76543210 fedcba98 ... + */ + + std::string charArray; + size_t index = 0; + char currChar = 0; + + for (std::string::const_iterator bIter = boolString.begin(); bIter != boolString.end(); bIter++) { + + if (*bIter == '1') { + currChar |= 1 << index; + } + + index++; + if (index == 8) { + charArray += currChar; + currChar = 0; + index = 0; + } + } + + if (index != 0) { + charArray += currChar; + } + + std::string seperator = ""; + for (std::string::const_iterator cIter = charArray.begin(); cIter != charArray.end(); cIter++) { + stream << seperator << "0x" << std::setw(2) << std::setfill('0') << std::hex << int(*cIter & 0xFF); + seperator = ", "; + } +} + +void ChartToC::writeFSM(std::ostream& stream) { + stream << "int scxml_step(scxml_ctx* ctx) {" << std::endl; + stream << std::endl; + + stream << "#ifdef SCXML_VERBOSE" << std::endl; + stream << " printStateNames(ctx->config);" << std::endl; + stream << "#endif" << std::endl; + stream << std::endl; + + stream << "MACRO_STEP:" << std::endl; + stream << " ctx->flags &= ~SCXML_CTX_TRANSITION_FOUND;" << std::endl; + stream << std::endl; + + stream << " if (ctx->flags & SCXML_CTX_TOP_LEVEL_FINAL) " << std::endl; + stream << " return SCXML_ERR_DONE; " << std::endl; + stream << std::endl; + + stream << " int err = SCXML_ERR_OK;" << std::endl; + stream << " char conflicts[" << _transCharArraySize << "] = " << _transCharArrayInit << ";" << std::endl; + stream << " char target_set[" << _stateCharArraySize << "] = " << _stateCharArrayInit << ";" << std::endl; + stream << " char exit_set[" << _stateCharArraySize << "] = " << _stateCharArrayInit << ";" << std::endl; + stream << " char trans_set[" << _transCharArraySize << "] = " << _transCharArrayInit << ";" << std::endl; + stream << " char entry_set[" << _stateCharArraySize << "] = " << _stateCharArrayInit << ";" << std::endl; + stream << std::endl; + + stream << " void* event;" << std::endl; + stream << " if (ctx->flags == SCXML_CTX_PRISTINE) {" << std::endl; + stream << " bit_or(target_set, scxml_states[0].completion, " << _stateCharArraySize << ");" << std::endl; + stream << " ctx->flags |= SCXML_CTX_SPONTANEOUS | SCXML_CTX_INITIALIZED;" << std::endl; + stream << " goto COMPLETE_CONFIG;" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " if (ctx->flags & SCXML_CTX_SPONTANEOUS) {" << std::endl; + stream << " event = NULL;" << std::endl; + stream << " goto SELECT_TRANSITIONS;" << std::endl; + stream << " }" << std::endl; + stream << " if ((event = ctx->dequeue_internal(ctx)) != NULL) {" << std::endl; + stream << " goto SELECT_TRANSITIONS;" << std::endl; + stream << " }" << std::endl; + stream << " if ((event = ctx->dequeue_external(ctx)) != NULL) {" << std::endl; + + stream << " goto SELECT_TRANSITIONS;" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "SELECT_TRANSITIONS:" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_TRANSITIONS; i++) {" << std::endl; + stream << " // is the transition active?" << std::endl; + stream << " if (IS_SET(scxml_transitions[i].source, ctx->config)) {" << std::endl; + stream << " // is it non-conflicting?" << std::endl; + stream << " if (!IS_SET(i, conflicts)) {" << std::endl; + stream << " // is it enabled?" << std::endl; + stream << " if (ctx->is_enabled(ctx, &scxml_transitions[i], event) > 0) {" << std::endl; + stream << " // remember that we found a transition" << std::endl; + stream << " ctx->flags |= SCXML_CTX_TRANSITION_FOUND;" << std::endl; + stream << std::endl; + + stream << " // transitions that are pre-empted" << std::endl; + stream << " bit_or(conflicts, scxml_transitions[i].conflicts, " << _transCharArraySize << ");" << std::endl; + stream << std::endl; + stream << " // states that are directly targeted (resolve as entry-set later)" << std::endl; + stream << " bit_or(target_set, scxml_transitions[i].target, " << _stateCharArraySize << ");" << std::endl; + stream << std::endl; + stream << " // states that will be left" << std::endl; + stream << " bit_or(exit_set, scxml_transitions[i].exit_set, " << _stateCharArraySize << ");" << std::endl; + stream << std::endl; + stream << " SET_BIT(i, trans_set);" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " if (ctx->flags & SCXML_CTX_TRANSITION_FOUND) {" << std::endl; + stream << " ctx->flags |= SCXML_CTX_SPONTANEOUS;" << std::endl; + stream << " } else {" << std::endl; + stream << " ctx->flags &= ~SCXML_CTX_SPONTANEOUS;" << std::endl; + stream << " goto MACRO_STEP;" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "REMEMBER_HISTORY:" << std::endl; + stream << " // are my ancestors in the exit set?" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_STATES; i++) {" << std::endl; + stream << " if (IS_SET(i, ctx->config) && bit_has_and(exit_set, scxml_states[i].ancestors, " << _stateCharArraySize << ")) {" << std::endl; + stream << " SET_BIT(i, ctx->history);" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "#ifdef SCXML_VERBOSE" << std::endl; + stream << " printf(\"Exiting: \");" << std::endl; + stream << " printStateNames(exit_set);" << std::endl; + stream << "#endif" << std::endl; + stream << std::endl; + + stream << "EXIT_STATES:" << std::endl; + stream << " for (int i = SCXML_NUMBER_STATES - 1; i >= 0; i--) {" << std::endl; + stream << " if (IS_SET(i, exit_set) && IS_SET(i, ctx->config)) {" << std::endl; + stream << " // call all on exit handlers" << std::endl; + stream << " if (scxml_states[i].on_exit != NULL) {" << std::endl; + stream << " if((err = scxml_states[i].on_exit(ctx, &scxml_states[i], event)) != SCXML_ERR_OK)" << std::endl; + stream << " return err;" << std::endl; + stream << " }" << std::endl; + stream << " CLEARBIT(i, ctx->config);" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "COMPLETE_CONFIG:" << std::endl; + stream << " // calculate new entry set" << std::endl; + stream << " bit_copy(entry_set, target_set, " << _stateCharArraySize << ");" << std::endl; + stream << std::endl; + stream << " // iterate for ancestors" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_STATES; i++) {" << std::endl; + stream << " if (IS_SET(i, entry_set)) {" << std::endl; + stream << " bit_or(entry_set, scxml_states[i].ancestors, " << _stateCharArraySize << ");" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "ADD_DESCENDANTS:" << std::endl; + stream << " // iterate for descendants" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_STATES; i++) {" << std::endl; + stream << " if (IS_SET(i, entry_set)) {" << std::endl; + stream << " switch (scxml_states[i].type) {" << std::endl; + stream << " case SCXML_STATE_PARALLEL: {" << std::endl; + stream << " bit_or(entry_set, scxml_states[i].completion, " << _stateCharArraySize << ");" << std::endl; + stream << " break;" << std::endl; + stream << " }" << std::endl; + stream << " case SCXML_STATE_INITIAL: {" << std::endl; + stream << " for (int j = 0; j < SCXML_NUMBER_TRANSITIONS; j++) {" << std::endl; + stream << " if (scxml_transitions[j].source == i) {" << std::endl; + stream << " SET_BIT(j, trans_set);" << std::endl; + stream << " CLEARBIT(i, entry_set);" << std::endl; + stream << " bit_or(entry_set, scxml_transitions[j].target, " << _transCharArraySize << ");" << std::endl; + stream << " // one target may have been above, reestablish completion" << std::endl; + stream << " goto ADD_DESCENDANTS;" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " break;" << std::endl; + stream << " }" << std::endl; + stream << " case SCXML_STATE_COMPOUND: { // we need to check whether one child is already in entry_set" << std::endl; + stream << " if (!bit_has_and(entry_set, scxml_states[i].children, " << _stateCharArraySize << ")) {" << std::endl; + stream << " bit_or(entry_set, scxml_states[i].completion, " << _stateCharArraySize << ");" << std::endl; + stream << " }" << std::endl; + stream << " break;" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "#ifdef SCXML_VERBOSE" << std::endl; + stream << " printf(\"Transitions: \");" << std::endl; + stream << " printBitsetIndices(trans_set, sizeof(char) * 8 * " << _transCharArraySize << ");" << std::endl; + stream << "#endif" << std::endl; + stream << std::endl; + + stream << "TAKE_TRANSITIONS:" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_TRANSITIONS; i++) {" << std::endl; + stream << " if (IS_SET(i, trans_set)) {" << std::endl; + stream << " // call executable content in transition" << std::endl; + stream << " if (scxml_transitions[i].on_transition != NULL) {" << std::endl; + stream << " if((err = scxml_transitions[i].on_transition(ctx," << std::endl; + stream << " &scxml_states[scxml_transitions[i].source]," << std::endl; + stream << " event)) != SCXML_ERR_OK)" << std::endl; + stream << " return err;" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << "#ifdef SCXML_VERBOSE" << std::endl; + stream << " printf(\"Entering: \");" << std::endl; + stream << " printStateNames(entry_set);" << std::endl; + stream << "#endif" << std::endl; + stream << std::endl; + + stream << "ENTER_STATES:" << std::endl; + stream << " for (int i = 0; i < SCXML_NUMBER_STATES; i++) {" << std::endl; + stream << " if (IS_SET(i, entry_set) && !IS_SET(i, ctx->config)) {" << std::endl; + stream << " SET_BIT(i, ctx->config);" << std::endl; + stream << " if (scxml_states[i].on_entry != NULL) {" << std::endl; + stream << " if((err = scxml_states[i].on_entry(ctx, &scxml_states[i], event)) != SCXML_ERR_OK)" << std::endl; + stream << " return err;" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " // initialize data" << std::endl; + stream << " if(!IS_SET(i, ctx->initialized_data)) {" << std::endl; + stream << " if (scxml_states[i].data != NULL && ctx->exec_content_init != NULL) {" << std::endl; + stream << " ctx->exec_content_init(ctx, scxml_states[i].data);" << std::endl; + stream << " }" << std::endl; + stream << " SET_BIT(i, ctx->initialized_data);" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " // handle final states" << std::endl; + stream << " if (scxml_states[i].type == SCXML_STATE_FINAL) {" << std::endl; + stream << " if (scxml_states[i].ancestors[0] == 0x01) {" << std::endl; + stream << " ctx->flags |= SCXML_CTX_TOP_LEVEL_FINAL;" << std::endl; + stream << " } else {" << std::endl; + stream << " // raise done event" << std::endl; + stream << " size_t parent = 0;" << std::endl; + stream << " for (int j = 0; j < SCXML_NUMBER_STATES; j++) {" << std::endl; + stream << " // we could trade runtime for memory here by saving the parent index" << std::endl; + stream << " if (!IS_SET(j, scxml_states[i].ancestors)) {" << std::endl; + stream << " if (parent != 0) {" << std::endl; + stream << " break;" << std::endl; + stream << " }" << std::endl; + stream << " continue;" << std::endl; + stream << " } else {" << std::endl; + stream << " parent = j;" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " ctx->raise_done_event(ctx, &scxml_states[parent]);" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " /**" << std::endl; + stream << " * are we the last final state to leave a parallel state?:" << std::endl; + stream << " * 1. Gather all parallel states in our ancestor chain" << std::endl; + stream << " * 2. Find all states for which these parallels are ancestors" << std::endl; + stream << " * 3. Iterate all active final states and remove their ancestors" << std::endl; + stream << " * 4. If a state remains, not all children of a parallel are final" << std::endl; + stream << " */" << std::endl; + stream << " for (int j = 0; j < SCXML_NUMBER_STATES; j++) {" << std::endl; + stream << " if (scxml_states[j].type == SCXML_STATE_PARALLEL) {" << std::endl; + stream << " char parallel_children[2] = {0, 0};" << std::endl; + stream << " size_t parallel = j;" << std::endl; + stream << " for (int k = 0; k < SCXML_NUMBER_STATES; k++) {" << std::endl; + stream << " if (IS_SET(parallel, scxml_states[k].ancestors) && IS_SET(k, ctx->config)) {" << std::endl; + stream << " if (scxml_states[k].type == SCXML_STATE_FINAL) {" << std::endl; + stream << " bit_and_not(parallel_children, scxml_states[k].ancestors, 2);" << std::endl; + stream << " } else {" << std::endl; + stream << " SET_BIT(k, parallel_children);" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " if (!bit_any_set(parallel_children, 2)) {" << std::endl; + stream << " ctx->raise_done_event(ctx, &scxml_states[parallel]);" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " }" << std::endl; + stream << std::endl; + + stream << " }" << std::endl; + stream << " }" << std::endl; + stream << std::endl; + + stream << " return SCXML_ERR_OK;" << std::endl; + stream << "}" << std::endl; + stream << std::endl; +} + +NodeSet<std::string> ChartToC::inPostFixOrder(const std::set<std::string>& elements, const Element<std::string>& root) { + NodeSet<std::string> nodes; + inPostFixOrder(elements, root, nodes); + return nodes; +} + +void ChartToC::inPostFixOrder(const std::set<std::string>& elements, const Element<std::string>& root, NodeSet<std::string>& nodes) { + NodeList<std::string> children = root.getChildNodes(); + for (int i = 0; i < children.getLength(); i++) { + if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) + continue; + const Arabica::DOM::Element<std::string>& childElem(children.item(i)); + inPostFixOrder(elements, childElem, nodes); + + } + for (int i = 0; i < children.getLength(); i++) { + if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) + continue; + const Arabica::DOM::Element<std::string>& childElem(children.item(i)); + + if (elements.find(TAGNAME(childElem)) != elements.end()) { + nodes.push_back(childElem); + } + } +} + +NodeSet<std::string> ChartToC::inDocumentOrder(const std::set<std::string>& elements, const Element<std::string>& root) { + NodeSet<std::string> nodes; + inDocumentOrder(elements, root, nodes); + return nodes; +} + +void ChartToC::inDocumentOrder(const std::set<std::string>& elements, const Element<std::string>& root, NodeSet<std::string>& nodes) { + if (elements.find(TAGNAME(root)) != elements.end()) { + nodes.push_back(root); + } + + NodeList<std::string> children = root.getChildNodes(); + for (int i = 0; i < children.getLength(); i++) { + if (children.item(i).getNodeType() != Node_base::ELEMENT_NODE) + continue; + const Arabica::DOM::Element<std::string>& childElem(children.item(i)); + inDocumentOrder(elements, childElem, nodes); + } +} + +ChartToC::~ChartToC() { +} + +}
\ No newline at end of file |